Bug 891649 (CVE-2012-5977) - CVE-2012-5977 asterisk: Denial of service through exploitation of device state caching (AST-2012-015)
Summary: CVE-2012-5977 asterisk: Denial of service through exploitation of device stat...
Keywords:
Status: CLOSED ERRATA
Alias: CVE-2012-5977
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
low
low
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 891650 891651
Blocks:
TreeView+ depends on / blocked
 
Reported: 2013-01-03 14:30 UTC by Jan Lieskovsky
Modified: 2019-09-29 12:58 UTC (History)
4 users (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2013-01-30 07:40:25 UTC


Attachments (Terms of Use)

Description Jan Lieskovsky 2013-01-03 14:30:55 UTC
A denial of service flaw was found in the way Asterisk, an open-source PBX software, performed management of its internal device cache in certain circumstances. A remote attacker could use this flaw to cause the asterisk executable to consume excessive amount of system resources via repeated anonymous calls with different sources of the particular anonymous call (forcing the asterisk binary continually to add new devices into its device cache).

References:
[1] http://downloads.asterisk.org/pub/security/AST-2012-015.html

Upstream patches:
[2] http://downloads.asterisk.org/pub/security/AST-2012-015-1.8.11.diff
[3] http://downloads.asterisk.org/pub/security/AST-2012-015-1.8.diff
[4] http://downloads.asterisk.org/pub/security/AST-2012-015-10.diff
[5] http://downloads.asterisk.org/pub/security/AST-2012-015-11.diff

Comment 1 Jan Lieskovsky 2013-01-03 14:32:07 UTC
This issue affects the versions of the asterisk package, as shipped with Fedora release of 16 and 17. Please schedule an update.

--

This issue affects the version of the asterisk package, as shipped with Fedora EPEL 6. Please schedule an update.

Comment 2 Jan Lieskovsky 2013-01-03 14:34:12 UTC
Created asterisk tracking bugs for this issue

Affects: fedora-all [bug 891650]
Affects: epel-6 [bug 891651]

Comment 3 Fedora Update System 2013-01-30 00:33:00 UTC
asterisk-11.2.0-1.fc18 has been pushed to the Fedora 18 stable repository.  If problems still persist, please make note of it in this bug report.

Comment 4 Fedora Update System 2013-01-30 00:36:37 UTC
asterisk-10.12.0-1.fc17 has been pushed to the Fedora 17 stable repository.  If problems still persist, please make note of it in this bug report.

Comment 5 Fedora Update System 2013-01-30 00:55:17 UTC
asterisk-1.8.20.0-1.fc16 has been pushed to the Fedora 16 stable repository.  If problems still persist, please make note of it in this bug report.


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